From 0d486a1ffe457478d4303ebc72fc000b853bfcb3 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Sun, 31 Dec 2017 00:05:28 +0000 Subject: [PATCH] Add initial content handler for PDF format --- Makefile | 3 +- Makefile.defaults | 8 +-- content/content_protected.h | 34 +++++++-- content/handlers/Makefile | 5 ++ content/handlers/image/jpeg.c | 5 +- content/handlers/pdf/Makefile | 11 +++ content/handlers/pdf/pdf.c | 122 +++++++++++++++++++++++++++++++++ content/handlers/pdf/pdf.h | 29 ++++++++ desktop/netsurf.c | 7 ++ include/netsurf/content_type.h | 7 +- 10 files changed, 215 insertions(+), 16 deletions(-) create mode 100644 content/handlers/pdf/Makefile create mode 100644 content/handlers/pdf/pdf.c create mode 100644 content/handlers/pdf/pdf.h diff --git a/Makefile b/Makefile index d6723e046..011fc1f25 100644 --- a/Makefile +++ b/Makefile @@ -513,7 +513,6 @@ include Makefile.defaults # libraries enabled by feature switch without pkgconfig file $(eval $(call feature_switch,JPEG,JPEG (libjpeg),-DWITH_JPEG,-ljpeg,-UWITH_JPEG,)) -$(eval $(call feature_switch,HARU_PDF,PDF export (haru),-DWITH_PDF_EXPORT,-lhpdf -lpng,-UWITH_PDF_EXPORT,)) $(eval $(call feature_switch,LIBICONV_PLUG,glibc internal iconv,-DLIBICONV_PLUG,,-ULIBICONV_PLUG,-liconv)) $(eval $(call feature_switch,DUKTAPE,Javascript (Duktape),,,,,)) @@ -538,6 +537,7 @@ NETSURF_FEATURE_OPENSSL_CFLAGS := -DWITH_OPENSSL NETSURF_FEATURE_ROSPRITE_CFLAGS := -DWITH_NSSPRITE NETSURF_FEATURE_NSPSL_CFLAGS := -DWITH_NSPSL NETSURF_FEATURE_NSLOG_CFLAGS := -DWITH_NSLOG +NETSURF_FEATURE_NSPDF_CFLAGS := -DWITH_NSPDF # libcurl and openssl ordering matters as if libcurl requires ssl it # needs to come first in link order to ensure its symbols can be @@ -559,6 +559,7 @@ $(eval $(call pkg_config_find_and_add_enabled,NSSVG,libsvgtiny,SVG)) $(eval $(call pkg_config_find_and_add_enabled,ROSPRITE,librosprite,Sprite)) $(eval $(call pkg_config_find_and_add_enabled,NSPSL,libnspsl,PSL)) $(eval $(call pkg_config_find_and_add_enabled,NSLOG,libnslog,LOG)) +$(eval $(call pkg_config_find_and_add_enabled,NSPDF,libnspdf,PDF)) # List of directories in which headers are searched for INCLUDE_DIRS :=. include $(OBJROOT) diff --git a/Makefile.defaults b/Makefile.defaults index 1f9ce5fdf..6bb82cb9d 100644 --- a/Makefile.defaults +++ b/Makefile.defaults @@ -63,11 +63,9 @@ NETSURF_USE_VIDEO := NO # Valid options: YES, NO NETSURF_USE_DUKTAPE := YES -# Enable NetSurf's use of libharu for PDF export and GTK printing support. -# There is no auto-detection available for this, as it does not have a -# pkg-config file. -# Valid options: YES, NO -NETSURF_USE_HARU_PDF := NO +# Enable the use of netsurf integrated pdf viewing +# Valid options: YES, NO, AUTO +NETSURF_USE_NSPDF := AUTO # Enable the use of the Public suffix library to detect supercookies # Valid options: YES, NO, AUTO (highly recommended) diff --git a/content/content_protected.h b/content/content_protected.h index 21b73a662..941b5a798 100644 --- a/content/content_protected.h +++ b/content/content_protected.h @@ -17,8 +17,9 @@ * along with this program. If not, see . */ -/** \file - * Content handling (interface). +/** + * \file + * Content handling interface. * * The content functions manipulate struct contents, which correspond to URLs. */ @@ -36,17 +37,34 @@ struct content_redraw_data; struct http_parameter; struct content_handler { + /** + * content handler finalisation + */ void (*fini)(void); + /** + * create a content + */ nserror (*create)(const struct content_handler *handler, lwc_string *imime_type, const struct http_parameter *params, struct llcache_handle *llcache, - const char *fallback_charset, bool quirks, + const char *fallback_charset, + bool quirks, struct content **c); + /** + * ongoing fetch has received data + */ bool (*process_data)(struct content *c, - const char *data, unsigned int size); + const char *data, + unsigned int size); + + /** + * fetcher has completed retrieving all the data + * + * \param c The completed content. + */ bool (*data_complete)(struct content *c); void (*reformat)(struct content *c, int width, int height); void (*destroy)(struct content *c); @@ -82,10 +100,14 @@ struct content_handler { void (*add_user)(struct content *c); void (*remove_user)(struct content *c); - /** handler dependant content sensitive internal data interface. */ + /** + * handler dependant content sensitive internal data interface. + */ void * (*get_internal)(const struct content *c, void *context); - /** There must be one content per user for this type. */ + /** + * There must be one content per user for this type. + */ bool no_share; }; diff --git a/content/handlers/Makefile b/content/handlers/Makefile index 2f2da3aed..416969f3b 100644 --- a/content/handlers/Makefile +++ b/content/handlers/Makefile @@ -13,4 +13,9 @@ include content/handlers/javascript/Makefile S_CONTENT += $(addprefix handlers/javascript/,$(S_JAVASCRIPT)) +# PDF source +include content/handlers/pdf/Makefile + +S_CONTENT += $(addprefix handlers/pdf/,$(S_PDF)) + INCLUDE_DIRS += content/handlers diff --git a/content/handlers/image/jpeg.c b/content/handlers/image/jpeg.c index 44b1c5271..95b86cd33 100644 --- a/content/handlers/image/jpeg.c +++ b/content/handlers/image/jpeg.c @@ -17,8 +17,9 @@ * along with this program. If not, see . */ -/** \file - * Content for image/jpeg (implementation). +/** + * \file + * implementation of content handling for JPEG images. * * This implementation uses the IJG JPEG library. */ diff --git a/content/handlers/pdf/Makefile b/content/handlers/pdf/Makefile new file mode 100644 index 000000000..32d6e27b2 --- /dev/null +++ b/content/handlers/pdf/Makefile @@ -0,0 +1,11 @@ +# +# NetSurf pdf source file inclusion +# +# Included by content handlers Makefile +# + +ifeq ($(NETSURF_USE_NSPDF),YES) +S_PDF := pdf.c +else +S_PDF := +endif diff --git a/content/handlers/pdf/pdf.c b/content/handlers/pdf/pdf.c new file mode 100644 index 000000000..23457a26a --- /dev/null +++ b/content/handlers/pdf/pdf.c @@ -0,0 +1,122 @@ +/* + * Copyright 2004 James Bursa + * Copyright 2004 John M Bell + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** + * \file + * implementation of content handling for PDF. + * + * This implementation uses the netsurf pdf library. + */ + +#include +#include + +#include "utils/utils.h" +#include "content/llcache.h" +#include "content/content_protected.h" + +#include "pdf.h" + +/** + * Content create entry point. + */ +static nserror +pdf_create(const content_handler *handler, + lwc_string *imime_type, + const struct http_parameter *params, + llcache_handle *llcache, + const char *fallback_charset, + bool quirks, + struct content **c) +{ + struct content *jpeg; + nserror error; + + jpeg = calloc(1, sizeof(struct content)); + if (jpeg == NULL) + return NSERROR_NOMEM; + + error = content__init(jpeg, handler, imime_type, params, + llcache, fallback_charset, quirks); + if (error != NSERROR_OK) { + free(jpeg); + return error; + } + + *c = jpeg; + + return NSERROR_OK; +} + +/* exported interface documented in image_cache.h */ +static void pdf_destroy(struct content *content) +{ +} + +static bool pdf_convert(struct content *c) +{ + content_set_ready(c); + content_set_done(c); + return true; +} + +/* exported interface documented in image_cache.h */ +static bool +pdf_redraw(struct content *c, + struct content_redraw_data *data, + const struct rect *clip, + const struct redraw_context *ctx) +{ + return true; +} + +/** + * Clone content. + */ +static nserror pdf_clone(const struct content *old, struct content **newc) +{ + return NSERROR_NOMEM; +} + +static content_type pdf_content_type(void) +{ + return CONTENT_PDF; +} + + +static const content_handler nspdf_content_handler = { + .create = pdf_create, + .data_complete = pdf_convert, + .destroy = pdf_destroy, + .redraw = pdf_redraw, + .clone = pdf_clone, + .type = pdf_content_type, + .no_share = false, +}; + +static const char *nspdf_types[] = { + "application/pdf", + "application/x-pdf", + "application/acrobat", + "applications/vnd.pdf", + "text/pdf", + "text/x-pdf" +}; + +CONTENT_FACTORY_REGISTER_TYPES(nspdf, nspdf_types, nspdf_content_handler); diff --git a/content/handlers/pdf/pdf.h b/content/handlers/pdf/pdf.h new file mode 100644 index 000000000..2171b80c2 --- /dev/null +++ b/content/handlers/pdf/pdf.h @@ -0,0 +1,29 @@ +/* + * Copyright 2018 Vincent Sanders + * + * This file is part of NetSurf, http://www.netsurf-browser.org/ + * + * NetSurf is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * NetSurf is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +/** + * \file + * Interface for PDF content handler. + */ + +#ifndef NETSURF_PDF_PDF_H_ +#define NETSURF_PDF_PDF_H_ + +nserror nspdf_init(void); + +#endif diff --git a/desktop/netsurf.c b/desktop/netsurf.c index 8aa949a5a..2904cdb21 100644 --- a/desktop/netsurf.c +++ b/desktop/netsurf.c @@ -43,6 +43,7 @@ #include "javascript/js.h" #include "render/html.h" #include "render/textplain.h" +#include "pdf/pdf.h" #include "netsurf/browser_window.h" #include "desktop/system_colour.h" @@ -214,6 +215,12 @@ nserror netsurf_init(const char *store_path) if (ret != NSERROR_OK) return ret; +#ifdef WITH_NSPDF + ret = nspdf_init(); + if (ret != NSERROR_OK) + return ret; +#endif + setlocale(LC_ALL, ""); /* initialise the fetchers */ diff --git a/include/netsurf/content_type.h b/include/netsurf/content_type.h index ef654cd70..155db1fc5 100644 --- a/include/netsurf/content_type.h +++ b/include/netsurf/content_type.h @@ -1,5 +1,5 @@ /* - * Copyright 2003 James Bursa + * Copyright 2012 Vincent Sanders * * This file is part of NetSurf, http://www.netsurf-browser.org/ * @@ -68,8 +68,11 @@ typedef enum { /** All script types. */ CONTENT_SCRIPT = 0x40, + /** Portable Document Format. */ + CONTENT_PDF = 0x80, + /** Any content matches */ - CONTENT_ANY = 0x7f + CONTENT_ANY = 0xff } content_type;